CN108319517B - Fault diagnosis method and device - Google Patents
Fault diagnosis method and device Download PDFInfo
- Publication number
- CN108319517B CN108319517B CN201711397780.8A CN201711397780A CN108319517B CN 108319517 B CN108319517 B CN 108319517B CN 201711397780 A CN201711397780 A CN 201711397780A CN 108319517 B CN108319517 B CN 108319517B
- Authority
- CN
- China
- Prior art keywords
- fault
- reports
- deleting
- failure
- modes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
- G06F11/079—Root cause analysis, i.e. error or fault diagnosis
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Test And Diagnosis Of Digital Computers (AREA)
Abstract
A method and a device for fault diagnosis are provided, the method comprises the following steps: after receiving the fault reports, deleting secondary fault reports by utilizing the mutual initiation relation among the fault reports; analyzing the rest fault reports to delete the fault modes meeting the specified conditions; based on the remaining failure modes, the failure source is reported in a predetermined hierarchy. The method improves the traditional fault diagnosis method aiming at the characteristic that the passing test information of a specific functional system can not be obtained due to system design or working mode or fault blocking and the like so as to adapt to the requirements of rapidness and high efficiency of the design process of an actual diagnosis system.
Description
Technical Field
The disclosed embodiments relate to, but are not limited to, the field of fault diagnosis technologies, and in particular, to a fault diagnosis method and apparatus.
Background
The method is that the system state set space is sequentially and gradually divided by using the test corresponding to the nodes of the diagnostic tree through branches or test failure branches until the terminal nodes of the diagnostic tree are reached, and the system state can be further divided by no available test, and at this time, the terminal nodes corresponding to the diagnostic tree are the current state of the system, namely the diagnostic result or the fault reason.
The fault diagnosis method using the correlation matrix is also based on the same principle, except that the correlation matrix can divide the system state set space from a passing branch or a failing branch of any test, and a specific diagnosis tree can only divide the system state according to the test start corresponding to the starting node.
However, In practical engineering applications, particularly In the diagnosis of an onboard system of an aircraft, there are many systems In which a real-time fault reporting function corresponding to a BIT (build-In Test) circuit is implemented, and when the real-time fault reporting function is implemented, information that a certain specific Test passes is not specifically provided, but only information that the specific Test fails, that is, a fault warning is provided. The reasons for not providing test pass information are due to the simplicity of optimizing the data interface and bus transmission data volume between systems, due to the different availability of individual test pass information in different operating modes, and may also result in the unavailability or inaccessibility of BIT pass information for certain tests under certain system failure conditions.
Because the real-time fault reports of the systems can not provide passing information of corresponding tests, methods based on the diagnostic tree or the correlation matrix are invalid, the passing information of the tests can not be utilized to effectively eliminate fault causes, and the actual diagnostic result contains a large amount of devices or devices without faults.
In addition, the correlation matrix is directly used, so that the real-time fault diagnosis is long in reasoning time, more temporary resources and the like.
Disclosure of Invention
The embodiment of the disclosure provides a fault diagnosis method and device, so that correct fault diagnosis can be still performed when corresponding test passing information is not reported.
A method of fault diagnosis, comprising:
after receiving the fault reports, deleting secondary fault reports by utilizing the mutual initiation relation among the fault reports;
analyzing the rest fault reports to delete the fault modes meeting the specified conditions;
based on the remaining failure modes, the failure source is reported in a predetermined hierarchy.
Optionally, the deleting secondary failure reports by using the mutual induction relationship among the failure reports includes:
dividing the fault reports into a plurality of groups of fault reports according to a time window;
and inquiring the correlation relation among the fault reports in each group, and deleting the secondary fault reports.
Optionally, the querying a correlation relationship between the failure reports in each group, and deleting secondary failure reports includes:
if m fault reports exist in the group, the set of fault reports in the group is FR ═ FR1,fr2,...,frm)；
The fault report is defined as a logic function frm(t)＝fm(t1,t2,...,tn) Wherein the parameter tiRepresenting meta-test items in the system;
meta test item tiWith a corresponding test signature tsi＝{f1,f2,...flIn which f1,f2,...flIndicating a failure mode in the system;
and sequentially carrying out logical operation on the test signature of each fault report according to a logical function to obtain a fault mode set corresponding to the fault report: sfrj＝fj(ts1,ts2,...,tsn)＝{f1,f2,...fl)，
The following operations are sequentially performed on the failure mode sets corresponding to the failure reports of the group, when sfrj∪sfri＝sfrjJ is less than or equal to 1, m is less than or equal to i is not equal to j, sfrj≠sfriSfrjCorresponding fault report frjFor the purpose of secondary failure reporting,
deleting secondary failure reports frj。
Optionally, the analyzing the remaining fault reports to delete the fault modes meeting the specified condition includes:
querying the remaining one or more fault reports for relevant fault patterns;
and inquiring the covering relation of the fault signature sets among the fault modes, and deleting the fault mode corresponding to the fault signature set superset.
An apparatus for fault diagnosis, comprising:
the first deleting module is used for deleting the secondary fault reports by utilizing the mutual initiation relation among the fault reports after receiving the fault reports;
the second deleting module is used for analyzing the rest fault reports and deleting the fault modes meeting the specified conditions;
and the reporting module is used for reporting the fault source according to the residual fault modes and the preset level.
Optionally, the first deleting module deletes secondary failure reports by using a mutual induction relationship between the failure reports, including: dividing the fault reports into a plurality of groups of fault reports according to a time window; and inquiring the correlation relation among the fault reports in each group, and deleting the secondary fault reports.
Optionally, the first deleting module queries a correlation relationship between the failure reports in each group, and deletes the secondary failure reports, including: if m fault reports exist in the group, the set of fault reports in the group is FR ═ FR1,fr2,...,frm) (ii) a The fault report is defined as a logic function frm(t)＝fm(t1,t2,...,tn) Wherein the parameter tiRepresenting meta-test items in the system; meta test item tiWith a corresponding test signature tsi＝{f1,f2,...flIn which f1,f2,...flIndicating a failure mode in the system; and sequentially carrying out logical operation on the test signature of each fault report according to a logical function to obtain a fault mode set corresponding to the fault report: sfrj＝fj(ts1,ts2,...,tsn)＝{f1,f2,...fl) The following operations are sequentially performed on the failure mode sets corresponding to the failure reports of the group, when sfrj∪sfri＝sfrjJ is less than or equal to 1, m is less than or equal to i is not equal to j, sfrj≠sfriSfrjCorresponding fault report frjFor secondary failure reporting, deleting secondary failure report frj。
Optionally, the second deleting module analyzes the remaining fault reports to delete the fault modes meeting the specified conditions, and includes: querying the remaining one or more fault reports for relevant fault patterns; and inquiring the covering relation of the fault signature sets among the fault modes, and deleting the fault mode corresponding to the fault signature set superset.
A processing apparatus of fault diagnosis, comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements the steps of:
after receiving the fault reports, deleting secondary fault reports by utilizing the mutual initiation relation among the fault reports;
analyzing the rest fault reports to delete the fault modes meeting the specified conditions;
based on the remaining failure modes, the failure source is reported in a predetermined hierarchy.
The invention provides a method and a device for fault diagnosis, which firstly use a time window for fault report occurrence to carry out grouping, secondly use the mutual initiation relation among the fault reports to remove secondary fault reports, then compare the initiation fault ranges in the rest fault reports and remove non-root fault reports so as to realize the isolation of faults, and improve the flow and the method of the traditional fault diagnosis aiming at the characteristic that a specific functional system does not send a message that the test successfully passes, so as to adapt to the design process and the requirement of a diagnosis system of an actual system.
Drawings
Fig. 1 is a flow chart of a fault diagnosis according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a fault diagnosis apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
In order to solve the above problem, an embodiment of the present disclosure provides a method for fault diagnosis, as shown in fig. 1, the method of the present embodiment includes the following steps:
and step 13, reporting the fault source according to the residual fault modes and the preset level.
The method of the embodiment can perform fault diagnosis only under the condition of providing test failure information based on the real-time fault reports, firstly, the secondary fault reports are removed by utilizing the mutual initiation relation among the fault reports, and then, comprehensive judgment is performed in the remaining fault reports, for example, the irrelevant fault reports are reduced, the fault reason range is narrowed, and the fault isolation is realized.
The following is another embodiment of the present disclosure, including the steps of:
step 101: the diagnostic system receives a set of multiple fault reports;
the diagnosis system sequentially obtains real-time fault reports of the diagnosed object from a bus, a monitoring program or a fault log record and the like, wherein each fault report comprises the fault occurrence time.
Step 102: randomly selecting a group of fault report sets, inquiring the correlation relation among the group of fault report elements, and deleting secondary fault report elements from the sets;
the secondary fault reports are fault reports caused by reasons outside the equipment/system but report that the equipment/system is working abnormally or fails in some function, and the actual fault source causing the fault report is not inside the fault reporting equipment/system, but outside the fault reporting equipment/system, may be spatially and logically far away. Secondary failure reporting often misleads maintenance personnel to remove and replace non-failing equipment, making troubleshooting activities inefficient and difficult.
Sequentially inquiring the logic definitions of the group of fault reports, and if m fault reports exist in the set of the group, setting the set of the fault reports as FR ═ FR1,fr2,...,frm)；
The fault report is defined as a logical function frm(t)＝fm(t1,t2,...,tn) Wherein the parameter t1,t2,...,tnA meta-test item in the system is represented,representing a logical expression consisting of test conclusions;
each meta-test item testing a particular parameter or function, meta-test item tiWith a corresponding test signature tsi＝{f1,f2,...flIn which f1,f2,...flRepresenting a fault mode in the system, wherein the test signature corresponds to a fault mode set which can be detected by the test;
and sequentially carrying out logical operation on the test signature of each fault report according to a logical function to obtain a fault mode set corresponding to the fault report:
sfrj＝fj(ts1,ts2,...,tsn)＝{f1,f2,...fl) Wherein ts is1,ts2,...,tsnIs the corresponding test signature in the fault report logic function;
the following operations are sequentially performed on the failure mode sets corresponding to the failure reports of the group, when sfrj∪sfri＝sfrjJ is less than or equal to 1, m is less than or equal to i is not equal to j, sfrj≠sfriWhen it is asserted sfrjCorresponding fault report frjDeleting secondary failure reports from the failure reports for secondary failure reports, FR ═ FR-FRj。
Step 103: querying the remaining one or more fault reports for relevant fault patterns;
and assuming that the number of the residual fault reports in the group is p after the last step of operation, and combining the fault mode sets related to the residual fault reports.
∪sfri|1≤i≤p。
Step 104: inquiring the covering relation of the fault signature set among the fault modes, and deleting the fault mode corresponding to the fault signature superset;
each fault, due to its location in the system structure, will have a different range of fault effects and alarm phenomena, and in general if a particular fault is upstream in the system, and usually it has a much larger and broader range of effect, it is a superset than the range of effect and alarm set of faults caused by a fault of the same effect downstream in the system.
If the failure mode corresponding to the failure signature superset part is the true failure cause of the failure report set in the group, the failure report set subset corresponding to the true failure cause is removed and cannot become the superset of the remaining part (because the influence range of other failure causes of the secondary failure report is relatively small) in the previous step by deleting the secondary failure report set, and the failure mode corresponding to the remaining superset part in the current set is not deleted, which indicates that the failure mode is not the root failure cause, and the remaining non-superset failure modes (corresponding to the failure causes) cannot be deleted in the previous step and the current step.
Sequentially inquiring fault signatures sf of the fault mode set obtained in the last stepi＝{t1,t2,...,tnI is more than or equal to 1 and less than or equal to q, and the number of the failure modes in the failure mode set F obtained in the previous step is assumed to be q,
sequentially carrying out the following operation on the q fault signatures of the fault modes obtained in the last step, when sf isj∪sfi＝sfjJ is less than or equal to 1, q is less than or equal to i and i is not equal to j, sfj≠sfiWhen F is equal to F-sfj。
Step 105: and synthesizing the residual fault mode set F, and reporting the fault source according to the expected convention level.
The advantages of the disclosed embodiments are:
(1) and when the real-time fault report of the diagnosed system does not report the corresponding test passing information, correct fault diagnosis can still be carried out.
(2) The method can reduce the fuzzy group size when fault diagnosis is carried out by the traditional method.
(3) The method of the embodiment can form the diagnosis database for loading through off-line operation in advance, and only needs to query during running, so that the operation workload during fault diagnosis can be reduced.
(4) The method of the embodiment can realize the on-line real-time diagnosis of the diagnosis system and also carry out the off-line diagnosis.
The embodiment of the invention provides a fault diagnosis method only depending on real-time fault report and alarm information of a diagnosis object, which can be particularly applied to an airborne diagnosis system of an airplane.
Fig. 2 is a schematic diagram of a fault diagnosis apparatus according to an embodiment of the present invention, and as shown in fig. 2, the apparatus of the embodiment includes:
the first deleting module is used for deleting the secondary fault reports by utilizing the mutual initiation relation among the fault reports after receiving the fault reports;
the second deleting module is used for analyzing the rest fault reports and deleting the fault modes meeting the specified conditions;
and the reporting module is used for reporting the fault source according to the residual fault modes and the preset level.
In one embodiment, the first deleting module deletes secondary failure reports using a correlation between the failure reports, including: dividing the fault reports into a plurality of groups of fault reports according to a time window; and inquiring the correlation relation among the fault reports in each group, and deleting the secondary fault reports.
In one embodiment, the first deleting module queries a correlation relationship between the failure reports in each group and deletes the secondary failure reports, including: if m fault reports exist in the group, the set of fault reports in the group is FR ═ FR1,fr2,...,frm) (ii) a The fault report is defined as a logic function frm(t)＝fm(t1,t2,...,tn) Wherein the parameter tiRepresenting meta-test items in the system; meta test item tiWith a corresponding test signature tsi＝{f1,f2,...flIn which f1,f2,...flIndicating a failure mode in the system; and sequentially carrying out logical operation on the test signature of each fault report according to a logical function to obtain a fault mode set corresponding to the fault report: sfrj＝fj(ts1,ts2,...,tsn)＝{f1,f2,...fl) The following operations are sequentially performed on the failure mode sets corresponding to the failure reports of the group, when sfrj∪sfri＝sfrjJ is less than or equal to 1, m is less than or equal to i is not equal to j, sfrj≠sfriSfrjCorresponding fault report frjFor secondary failure reporting, deleting secondary failure report frj。
In an embodiment, the second deleting module analyzes the remaining fault reports to delete the fault modes meeting the specified condition, and includes: querying the remaining one or more fault reports for relevant fault patterns; and inquiring the covering relation of the fault signature sets among the fault modes, and deleting the fault mode corresponding to the fault signature set superset.
The present embodiment further provides a fault diagnosis apparatus, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements the steps of:
after receiving the fault reports, deleting secondary fault reports by utilizing the mutual initiation relation among the fault reports;
analyzing the rest fault reports to delete the fault modes meeting the specified conditions;
based on the remaining failure modes, the failure source is reported in a predetermined hierarchy.
The embodiment of the invention also provides a computer-readable storage medium, which stores computer-executable instructions, and when the computer-executable instructions are executed, the processing method for fault diagnosis is realized.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module/unit in the above embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present invention is not limited to any specific form of combination of hardware and software.
The foregoing is only a preferred embodiment of the present invention, and naturally there are many other embodiments of the present invention, and those skilled in the art can make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the scope of the appended claims.
Claims (7)
1. A method of fault diagnosis based on engineering applications, comprising:
after receiving fault reports, deleting secondary fault reports by utilizing the mutual initiation relation among the fault reports, wherein the fault reports only provide test failure information;
analyzing the rest fault reports to delete the fault modes meeting the specified conditions;
reporting fault sources according to the remaining fault modes and according to a preset hierarchy, wherein the types of the fault sources comprise equipment or devices;
wherein, the analyzing the remaining fault reports to delete the fault modes meeting the specified conditions comprises:
querying the relevant failure modes of the remaining one or more failure reports, wherein the failure modes correspond to failure reasons;
inquiring the covering relation of the fault signature sets among the fault modes, and deleting the fault mode corresponding to the fault signature set superset;
if a fault is upstream in the system, the fault coverage and alarm set caused by the fault for the same affected fault downstream in the system is a superset of the fault signature set.
2. The method of claim 1, wherein: deleting secondary fault reports by utilizing the mutual induction relationship among the fault reports, wherein the method comprises the following steps:
dividing the fault reports into a plurality of groups of fault reports according to a time window;
and inquiring the correlation relation among the fault reports in each group, and deleting the secondary fault reports.
3. The method of claim 2, wherein: the inquiring of the correlation relationship among the fault reports in each group and the deletion of the secondary fault reports comprises the following steps:
if m fault reports exist in the group, the fault reports in the group are collected into a set
；
The fault report is defined as a logical function
Wherein the parameters
Representing meta-test items in the system;
meta-test items
With corresponding test signatures
Wherein, in the step (A),
indicating a failure mode in the system;
and sequentially carrying out logical operation on the test signature of each fault report according to a logical function to obtain a fault mode set corresponding to the fault report:
，
the following operations are sequentially carried out on the fault mode sets corresponding to the fault reports of the group when
And is
, 
When the temperature of the water is higher than the set temperature,
corresponding fault report
For the purpose of secondary failure reporting,
deleting secondary failure reports
。
4. An apparatus for fault diagnosis based on engineering applications, comprising:
the system comprises a first deleting module, a second deleting module and a third deleting module, wherein the first deleting module is used for deleting secondary fault reports by utilizing the mutual initiation relation among the fault reports after receiving the fault reports, and the fault reports only provide test failure information;
the second deleting module is used for analyzing the rest fault reports and deleting the fault modes meeting the specified conditions;
the reporting module is used for reporting fault sources according to the remaining fault modes and according to a preset hierarchy, wherein the types of the fault sources comprise equipment or devices;
the second deleting module analyzes the remaining fault reports to delete the fault modes meeting the specified conditions, and comprises: querying the relevant failure modes of the remaining one or more failure reports, wherein the failure modes correspond to failure reasons; inquiring the covering relation of the fault signature sets among the fault modes, and deleting the fault mode corresponding to the fault signature set superset;
if a fault is upstream in the system, the fault coverage and alarm set caused by the fault for the same affected fault downstream in the system is a superset of the fault signature set.
5. The apparatus of claim 4, wherein:
the first deleting module deletes secondary fault reports by using the mutual initiation relation among the fault reports, and comprises the following steps: dividing the fault reports into a plurality of groups of fault reports according to a time window; and inquiring the correlation relation among the fault reports in each group, and deleting the secondary fault reports.
6. The apparatus of claim 5, wherein:
the first deleting module is used for inquiring the correlation relation among the fault reports in each group and deleting secondary fault reports, and comprises the following steps: if m fault reports exist in the group, the fault reports in the group are collected into a set
(ii) a The fault report is defined as a logical function
Wherein the parameters
Representing meta-test items in the system; meta-test items
With corresponding test signatures
Wherein, in the step (A),
indicating a failure mode in the system; and sequentially carrying out logical operation on the test signature of each fault report according to a logical function to obtain a fault mode set corresponding to the fault report:
sequentially carrying out the following operations on the fault mode sets corresponding to the fault reports of the group when
And is
, 
When the temperature of the water is higher than the set temperature,
corresponding fault report
Deleting secondary failure reports for secondary failure reports
。
7. A processing apparatus for fault diagnosis based on engineering applications, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements the steps of:
after receiving fault reports, deleting secondary fault reports by utilizing the mutual initiation relation among the fault reports, wherein the fault reports only provide test failure information;
analyzing the rest fault reports to delete the fault modes meeting the specified conditions;
reporting fault sources according to the remaining fault modes and according to a preset hierarchy, wherein the types of the fault sources comprise equipment or devices;
wherein, the analyzing the remaining fault reports to delete the fault modes meeting the specified conditions comprises:
querying the remaining one or more fault reports for relevant fault patterns, the fault patterns including fault cause inferences from the fault reports;
inquiring the covering relation of the fault signature sets among the fault modes, and deleting the fault mode corresponding to the fault signature set superset;
if a fault is upstream in the system, the fault coverage and alarm set caused by the fault for the same affected fault downstream in the system is a superset of the fault signature set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711397780.8A CN108319517B (en) | 2017-12-21 | 2017-12-21 | Fault diagnosis method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711397780.8A CN108319517B (en) | 2017-12-21 | 2017-12-21 | Fault diagnosis method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108319517A CN108319517A (en) | 2018-07-24 |
| CN108319517B true CN108319517B (en) | 2021-08-27 |
Family
ID=62893142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711397780.8A Active CN108319517B (en) | 2017-12-21 | 2017-12-21 | Fault diagnosis method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108319517B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111582347B (en) * | 2020-04-29 | 2023-09-12 | 北京旋极信息技术股份有限公司 | Fault diagnosis method and device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6484107B1 (en) * | 1999-09-28 | 2002-11-19 | Rosemount Inc. | Selectable on-off logic modes for a sensor module |
| CN1870538A (en) * | 2006-05-08 | 2006-11-29 | 国家数字交换系统工程技术研究中心 | Method and system for fault management |
| CN102006198A (en) * | 2010-12-16 | 2011-04-06 | 中国电子科技集团公司第三十研究所 | Method and device for acquiring network failure association rule |
| CN102147824A (en) * | 2011-03-09 | 2011-08-10 | 北京航空航天大学 | Extensible testability modeling method aiming at on-off type polymorphic system |
| CN102930081A (en) * | 2012-10-09 | 2013-02-13 | 中国航空综合技术研究所 | Built-in testing design method based on relevance model |
| CN103019227A (en) * | 2012-11-30 | 2013-04-03 | 北京控制工程研究所 | Satellite control system fault identification method based on fault element description |
| CN107102942A (en) * | 2017-04-01 | 2017-08-29 | 南京邮电大学 | A kind of minimum Fault Locating Method based on input domain location of mistake |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2939510C (en) * | 2014-09-17 | 2018-07-24 | Casebank Technologies Inc. | Systems and methods for component failure-mode surveillance |
| CN106444703B (en) * | 2016-09-20 | 2018-12-07 | 西南石油大学 | Dynamic equipment running status fuzzy evaluation and prediction technique based on fault mode probability of happening |
-
2017
- 2017-12-21 CN CN201711397780.8A patent/CN108319517B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6484107B1 (en) * | 1999-09-28 | 2002-11-19 | Rosemount Inc. | Selectable on-off logic modes for a sensor module |
| CN1870538A (en) * | 2006-05-08 | 2006-11-29 | 国家数字交换系统工程技术研究中心 | Method and system for fault management |
| CN102006198A (en) * | 2010-12-16 | 2011-04-06 | 中国电子科技集团公司第三十研究所 | Method and device for acquiring network failure association rule |
| CN102147824A (en) * | 2011-03-09 | 2011-08-10 | 北京航空航天大学 | Extensible testability modeling method aiming at on-off type polymorphic system |
| CN102930081A (en) * | 2012-10-09 | 2013-02-13 | 中国航空综合技术研究所 | Built-in testing design method based on relevance model |
| CN103019227A (en) * | 2012-11-30 | 2013-04-03 | 北京控制工程研究所 | Satellite control system fault identification method based on fault element description |
| CN107102942A (en) * | 2017-04-01 | 2017-08-29 | 南京邮电大学 | A kind of minimum Fault Locating Method based on input domain location of mistake |
Non-Patent Citations (1)
| Title |
|---|
| 中央维护计算机系统中的故障处理技术;李文娟等;《自动化测试技术》;20140125;第3.2节，图2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108319517A (en) | 2018-07-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10355950B2 (en) | Progressive deployment and termination of canary instances for software analysis | |
| US10616044B1 (en) | Event based service discovery and root cause analysis | |
| US9075911B2 (en) | System and method for usage pattern analysis and simulation | |
| CN108399082B (en) | Method and system for generating continuous integration assembly line | |
| CN106547643B (en) | Recovery method and device of abnormal data | |
| CN110995482A (en) | Alarm analysis method and device, computer equipment and computer readable storage medium | |
| CN111061293B (en) | Multi-parameter coupled aircraft fault positioning method, aircraft and storage medium | |
| CN112559237B (en) | Operation and maintenance system troubleshooting method and device, server and storage medium | |
| US8744985B2 (en) | Monitoring state of health information for components | |
| CN108319517B (en) | Fault diagnosis method and device | |
| CN107579844A (en) | It is a kind of that failure method for digging is dynamically associated based on service path and frequency matrix | |
| CN107977310B (en) | Traversal test command generation method and device | |
| US20160103756A1 (en) | Application architecture assessment system | |
| CN111382198A (en) | Data recovery method, device, equipment and storage medium | |
| US11663544B2 (en) | System and methods for risk assessment in a multi-tenant cloud environment | |
| CN110609761B (en) | Method and device for determining fault source, storage medium and electronic equipment | |
| EP3435233B1 (en) | A method for identifying causality objects | |
| CN110765193B (en) | Block chain data export method and device | |
| CN110633201B (en) | Integrated fuzzy test method and device for program | |
| CN113342650A (en) | Chaos engineering method and device for distributed system | |
| Chen et al. | Big data system testing method based on chaos engineering | |
| Cha | Multiple fault diagnosis in combinational networks | |
| US20190235995A1 (en) | Non-transitory computer-readable medium, information processing apparatus, debugging system and debugging method | |
| Hu et al. | Research on application of equipment fault diagnosis technology based on FTA | |
| CN111258808A (en) | Method, apparatus, device and medium for data automation management |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |